JPS6070190A - Anticorrosive - Google Patents
AnticorrosiveInfo
- Publication number
- JPS6070190A JPS6070190A JP59175812A JP17581284A JPS6070190A JP S6070190 A JPS6070190 A JP S6070190A JP 59175812 A JP59175812 A JP 59175812A JP 17581284 A JP17581284 A JP 17581284A JP S6070190 A JPS6070190 A JP S6070190A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion inhibitor
- hydrogen atom
- corrosion
- formula
- corrosion inhibitors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
- C23F11/164—Sulfur-containing compounds containing a -SO2-N group
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、腐食防止剤に関し、詳しくは特定のスルホン
アミド誘導体を含んで成る、水系におＣＪる腐食防止剤
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to corrosion inhibitors, and more particularly to aqueous corrosion inhibitors comprising certain sulfonamide derivatives.
［従来技術］ 水系における腐食防止は、技術上、重要な課題である。[Prior art] Corrosion prevention in water systems is an important technical issue.
腐食防止剤の使用には、多大な困難を伴う。例えば、発
泡は好ましくない。水溶性または水硬度に対する感受性
は、物質の利用可能性にとってたいへん重要である。更
に、物質の毒性、分解性および貯蔵安定性は重要な役割
を果す。The use of corrosion inhibitors is fraught with great difficulties. For example, foaming is undesirable. Water solubility or sensitivity to water hardness is very important for the availability of substances. Furthermore, the toxicity, degradability and storage stability of the substance play an important role.
最近、カルボン酸基に３以上の炭素原子を持つアリール
スルホンアミドカルボン酸、およびアルケニルコハク酸
もしくはマレイン酸のハーフアミドの如き化合物が、腐
食防止剤として提案されている。これら腐食防止剤は、
高濃度においてのみ良好な腐食防止性があり、上記使用
要件に合致しないことが多い。Recently, compounds such as arylsulfonamide carboxylic acids having three or more carbon atoms in the carboxylic acid group, and half-amides of alkenylsuccinic or maleic acids have been proposed as corrosion inhibitors. These corrosion inhibitors are
They have good corrosion protection only at high concentrations, which often do not meet the above requirements for use.
［発明の構成］
本発明は、式；
［式中、Ｒ４は炭素数１〜６のアルキル基、Ｒ２はメチ
ル基または水素原子を表わす。］で示される化合物のア
ルカリまたはアンモニウム塩を含んで成る、水系におけ
る腐食防止剤を提供する。[Structure of the Invention] The present invention is based on the formula: [In the formula, R4 represents an alkyl group having 1 to 6 carbon atoms, and R2 represents a methyl group or a hydrogen atom. ] Provided is an aqueous corrosion inhibitor comprising an alkali or ammonium salt of a compound represented by:
特に、」二記式においてＲ，がヘキシル基、Ｒ７が水素
原子である化合物が好ましい。Particularly preferred are compounds in which R is a hexyl group and R7 is a hydrogen atom.
更に、ナトリウムまたはカルシウム塩の如きアルカリ塩
以外に、特にアンモニア、モノ−、ジーまたはトリアル
カノールアミンの如き有機塩基とのアンモニウム塩が好
ましいことを見い出した。Furthermore, it has been found that besides alkali salts such as sodium or calcium salts, ammonium salts are preferred, especially with organic bases such as ammonia, mono-, di- or trialkanolamines.
本発明における腐食防止化合物は、単独でまたは混合物
として、水性溶液、分散液またはエマルジョンの形で用
いてよい。本発明の腐食防止剤は、低濃度で高い効果を
発揮する。あるものは０．０５重量％で十分な効果を発
揮する。用いられる腐食防止剤は、際立った低発泡性お
にび良好な水硬度安定性を有する。The corrosion-inhibiting compounds according to the invention may be used alone or in mixtures, in the form of aqueous solutions, dispersions or emulsions. The corrosion inhibitor of the present invention exhibits high effectiveness at low concentrations. Some exhibit sufficient effects at 0.05% by weight. The corrosion inhibitors used have outstanding low foaming properties and good water hardness stability.
ｐ−アルキル−アリール−スルポンアミド酢酸およびそ
の水溶性塩の調製間、既知方法によって行える。ｊ、か
じ、この調製は本発明の範囲で（」ない。The preparation of p-alkyl-aryl-sulponamidoacetic acid and its water-soluble salts can be carried out by known methods. This preparation is not within the scope of the present invention.
［実施例］
以下に、実施例を示し、本発明を更に詳しく説明するが
、本発明はこれら実施例に限定されるものではない。[Examples] The present invention will be explained in more detail below with reference to Examples, but the present invention is not limited to these Examples.
腐食防止特性の確認は、重量減少測定によって行った。The corrosion protection properties were confirmed by weight loss measurements.
実施例１
重量減少試験
試験水８００ｍρ、緩衝液５０好おｊ；び所定量の試験
すべき物質が入った容器の中に、綿密に予め検査し、重
量を測定した試験片（合金でない鋼、８０ Ｘ ５０
Ｘ ］ ｍｍ）を３本ずつ吊し、室温で３時間８０回転
／分で回転させた。Example 1 Weight Loss Test Test specimens (unalloyed steel, unalloyed steel, 80 x 50
Three tubes (X] mm) were hung and rotated at 80 rpm for 3 hours at room temperature.
ブランク試料を対照にして、重量損失から腐食防止価を
算出した。The corrosion inhibition value was calculated from the weight loss using a blank sample as a control.
３−
５ ＝ １００ （１−＝）
ａ−試料の重量損失
ｄ−重量損失ブランク値
腐食媒体として用いた試験水は、ＤＩＮ５１３６０／２
に従って調製し、アンモニア／アンモニウムクロリドで
ｐＨ９に緩衝した。3-5 = 100 (1-=) a - Weight loss of sample d - Weight loss blank value The test water used as corrosive medium was DIN 51360/2
and buffered to pH 9 with ammonia/ammonium chloride.
第２〜４表に結果を示す。ここで、ベンゼンスルホンア
ミドカプロン酸のジェタノールアミン塩（Ｎ）を比較と
して示した。第１表に用いた化合物を示す。化合物にＡ
−Ｍの記号を付したが、その中でどのような化合物が重
要であるかは明白である。Ｒ１およびＲ２は化合物の式
に関係している。The results are shown in Tables 2-4. Here, jetanolamine salt (N) of benzenesulfonamidocaproic acid is shown for comparison. Table 1 shows the compounds used. A to the compound
Although the symbol -M has been attached, it is clear which compounds are important among them. R1 and R2 are related to the formula of the compound.
第４表には、本発明における混合物の保護剤を示ず。Table 4 does not show the protective agent for the mixture according to the invention.
４− ＮＨｓ−ジエタノールアミン 第２表 第３表 第４表 アルカリ塩についても、同様に優れた効果が得られた。4- NHs-diethanolamine Table 2 Table 3 Table 4 Similar excellent effects were obtained with alkali salts.
特許出願人 ヘンケル・コマンデイツトゲゼルシャフト
・アウフ・アクヂエン
代 理 人 弁理士 青白 葆 ほか２名７−Patent applicant: Henkel Kommandeitsu Gesellschaft Auf Akzien Representative Patent attorney: Aobai Ao and 2 others 7-
Claims (1)
ル基または水素原子を表わす。］で示される化合物のア
ルカリまたはアンモニウム塩を含んで成る、水系におけ
る腐食防止剤。 （２）Ｒ，はヘキシル基、Ｒ，は水素原子である第１項
記載の腐食防止剤。 （３）該化合物の混合物を含んで成る第１項記載の腐食
防止剤。 （４）化合物の量は０．５〜５Ｋｇ７ｍ”である第１項
記載の腐食防止剤。[Claims] (+) Formula ・ [In the formula, R1 represents an alkyl group having 1 to 6 carbon atoms, and R2 represents a methyl group or a hydrogen atom. A corrosion inhibitor in an aqueous system comprising an alkali or ammonium salt of a compound represented by: (2) The corrosion inhibitor according to item 1, wherein R is a hexyl group and R is a hydrogen atom. (3) The corrosion inhibitor of claim 1, comprising a mixture of said compounds. (4) The corrosion inhibitor according to item 1, wherein the amount of the compound is 0.5 to 5 kg 7 m''.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833330223 DE3330223A1 (en) | 1983-08-22 | 1983-08-22 | CORROSION INHIBITORS |
| DE3330223.5 | 1983-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6070190A true JPS6070190A (en) | 1985-04-20 |
Family
ID=6207116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59175812A Pending JPS6070190A (en) | 1983-08-22 | 1984-08-22 | Anticorrosive |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0142627B1 (en) |
| JP (1) | JPS6070190A (en) |
| AT (1) | ATE30603T1 (en) |
| DE (2) | DE3330223A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3719046A1 (en) * | 1987-06-06 | 1988-12-15 | Basf Ag | USE OF SALTS OF SULFONAMIDE CARBONIC ACIDS AS CORROSION INHIBITORS IN AQUEOUS SYSTEMS |
| JPH05320957A (en) * | 1992-05-15 | 1993-12-07 | Union Chem Kk | Rust preventing material |
| DE4323907A1 (en) * | 1993-07-16 | 1995-01-19 | Henkel Kgaa | Use of carboxylic acids in agents for treating metal surfaces |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1298672B (en) * | 1967-07-15 | 1969-07-03 | Hoechst Ag | Corrosion-preventing metalworking agent |
| BE810115A (en) * | 1973-10-30 | 1974-05-16 | CORROSION INHIBITION METHOD USING CULFONYL GLYCINE COMPOUNDS | |
| DE2947418A1 (en) * | 1979-11-24 | 1981-06-04 | BASF Corp., New York, N.Y. | IMPLEMENTATION PRODUCTS OF SULPHONE OR CARBONAMIDOCARBONIC ACIDS WITH ALKANOLAMINES AND THEIR USE AS LOW-FOAM CORROSION INHIBITORS |
-
1983
- 1983-08-22 DE DE19833330223 patent/DE3330223A1/en not_active Withdrawn
-
1984
- 1984-08-13 AT AT84109614T patent/ATE30603T1/en not_active IP Right Cessation
- 1984-08-13 EP EP84109614A patent/EP0142627B1/en not_active Expired
- 1984-08-13 DE DE8484109614T patent/DE3467190D1/en not_active Expired
- 1984-08-22 JP JP59175812A patent/JPS6070190A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3330223A1 (en) | 1985-03-14 |
| DE3467190D1 (en) | 1987-12-10 |
| EP0142627B1 (en) | 1987-11-04 |
| EP0142627A1 (en) | 1985-05-29 |
| ATE30603T1 (en) | 1987-11-15 |
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